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ZCV34 Framing Dimensions for Vented Chase with Open Top
Ventilation Plates must be removed before installation into a Vented Chase
Inside walls of the chase
MUST
be drywalled. Determine whether face of
fireplace will be flush with framing or finished wall. Refer to Nailing Tab
Guide also.
NOTE:
These structures are not load bearing.
Fig.1
Framing for Horizontal Vent
Termination
(See
Installation of Side
Wall Venting
Section)
Vertical Venting MUST maintain 1”
clearance to combustibles.
Framing Depth:
17-5/8
” for 1/2” Drywall flush with face of unit.
18-1/8
” for Framing flush with face of unit.
No loose Combustibles (wood, wiring, etc.) are
allowed inside the Chase area.
TOP VIEW
40” MIN FOR NG
52” MIN FOR PROPANE
2”
Top of
Chase Open
on 3 Sides
Unit and Framing
can be covered
with a combustible
i.e., drywall.
TOP OF CHASE
MUST BE OPEN
ON 3 SIDES
2” From Ceiling or Top
of Enclosure
Top of Chase
Open on 3
Sides
18-
1/8”
SIDE VIEW
-Remove Ventilation Plates-
See
Removal of Vent Covers
on Page 14.
22
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